P20DA
Exhaust Aftertreatment Fuel Supply Control Circuit High
P20DA is an OBD-II diagnostic trouble code meaning: Exhaust Aftertreatment Fuel Supply Control Circuit High. Common causes: open or short circuit in control circuit, faulty fuel supply solenoid valve. Estimated repair cost: $17–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Problems with the exhaust gas cleaning system
- Possible black smoke from the exhaust pipe
Causes
- Open or short circuit in control circuit
- Faulty fuel supply solenoid valve
- Problems with the wiring harness or connectors
- Engine control unit (ECU) malfunction
- Mechanical damage to injection system components
How to Fix
- Check the integrity of the wiring harness and connectors
- Test solenoid valve resistance
- Check control circuit voltage
- If necessary, replace the faulty valve or wiring
- Scan the control unit for additional errors
Related codes
Error P20DA by Vehicle Brand
FAQ
What does the P20DA code mean?
P20DA is an OBD-II diagnostic trouble code that indicates: Exhaust Aftertreatment Fuel Supply Control Circuit High
What causes a P20DA error code?
The most common causes of P20DA include: Open or short circuit in control circuit; Faulty fuel supply solenoid valve; Problems with the wiring harness or connectors; Engine control unit (ECU) malfunction.
How do I fix a P20DA diagnostic trouble code?
To fix P20DA: Check the integrity of the wiring harness and connectors. Test solenoid valve resistance. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20DA?
Limited driving only, diagnose soon
How much does it cost to fix P20DA?
The estimated repair cost for P20DA is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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